5. AC bisects Angle BAD. Find the measure of angle BAC.
1 answer:
If AC bisects < BAD, it means it cuts it into 2 equal parts
so < BAC = < CAD
3x + 12 = 5x
12 = 5x - 3x
12 = 2x
12/2 = x
6 = x
< BAC = 3x + 12.......3(6) + 12 = 30 degrees <===
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